(19)

(11)

EP 4 081 699 A1

(12)

(43) Date of publication: 02.11.2022 Bulletin 2022/44 (21) Application number: 21704418.9 (22) Date of filing: 25.01.2021

(51) International Patent Classification (IPC):  F01K 3/18(2006.01) (52) Cooperative Patent Classification (CPC): F01K 3/18; Y02P 80/15; Y02E 20/14; Y02E 20/16 (86) International application number: PCT/EP2021/051622 (87) International publication number: WO 2021/160415 (19.08.2021 Gazette 2021/33)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 11.02.2020 EP 20156638 (71) Applicant: Siemens Gamesa Renewable Energy GmbH & Co. KG 20097 Hamburg (DE)	(72) Inventors: EGGERS, Jan Rudolf 21640 Hannover (DE) HUCK, Daniel 22309 Hamburg (DE) MEINERT, Jonathan 22089 Hamburg (DE) OEXMANN, Jochen 21107 Hamburg (DE) ZACZEK, Alexander 20095 Hamburg (DE) (74) Representative: Sauthoff, Karsten  Siemens Aktiengesellschaft Postfach 22 16 34 80506 München 80506 München (DE)